Hoisting engine



T. S. MILLER HoIsTmG ENGINE Mmh 3o A, 1926. 1,578,341A

.Filed neo'. 25, 1924 5 sheets-sheet 2 afg.

T. s. Mamas;

HOISTIHG ENGINE March 3d, i926, y y .1,578,341

' Filed Dec. 25, 1924 3 sheetswsheet s I ff Patented Marl. 30,51926.`

' THOMAS -sPENcEE MILLER, or soUfrH oEANGE, NEW'JEESEY.

HOISTING ENGINE.

application med Dcevmberes, 1924.V sei-iai No'. 757,588.'

To all whom mayA concern: Q Beit known` that I, THoMAs SBENCER .,lVIILLER, a citizen Vof the United States,"resid Y ing at South Ora-nge, inthe county vof Essex VandState of New Jersey, havefinvented certain new anduseful Improvements in *,Hoisting Engines, ofwhich theifollowing vis Aa specification. 1 i 'A vMy invention consists of certain novel parts and ,l combinations of parts, particularly pointed out in the claims.

, The vfollowing is a description of afhoist'- ing engine embodying my invention in the iform fat present vpreferred by me, but it will be understood that' various modifications rand changes may-be made thereinv A Ywithout departing from thespirit of my vir'ivention and without exceeding the'scope of my.- claims. k l

My invention will best be understood by reference to the accompanying drawings', in which Fig.` 1 isr a side view'of` y,a skidding andA loading .enginey 4in connection with which my invention may be used ,1 Fig. .2 is a plan view of the loading engine;y F1g3 is a side view of Fig. 2; Fig. 4 1s a longitudinal Vsection through the main drum and 1 associated parts; Fig. 5 is a fragmentary @longitudinal section .throughk one fof the "spaced-drums used fOrIsWi'ngifng the load- Iing boom and Fig. 6`is a viewV illustrating' the operatingmechanism for' the-V idler.

vLike reference 'characters indicateTlike parts throughoutthe drawings.

' Referring now to' the drawings, 1()V is a main drive shaft extending lacross thehoist and having Aits bearings at,11'-11 instandards 12-12, `mounted on the main frame l13, which is illustrated in Fig. las a turntable and in turn mounted on the bed frame 14:. The maindrive shaft 10 is operated,

in-the form illustrated, by an electric motor V14, suitably mounted on the frame 13 and provided with a shaft 15, one of the bearings of which asindic'ated y-at 16 (Fig. 2). kOn the shaft 15 of 'the motor is fixedly mounted a vdriving pinion 17 which mesheswith af gear 18 keyed von av counter shaft .19', to .which vis also keyed a pinion 2O ,which meshes with and drives a gear 21 finedl on the shaft 10. The gearm21drives a gear." 22 loosely mounted 'onthe 'drum shaft 23,

having its bearing at 24 inthe standards 12. v The gear 22 is provided on its inner'faee with van `annular,)cc'inicfal friction memberV 22a', the'conical .friction surface of which'en.-

vgages aV complementary conical frictionsur- Y falcei25 on one of the flanges l26 of thev main Y Vdrum 2', mounted on the drum shaft 23.

Keyed` on the'drive vshaft lOis also "a driving .pinion 28, which engages a gear' 29 loosely mounted on the drum shaft 23, and

jwhich is providedwith 'a conevfriction memalso driven forwardly'but' at a'relativelylow speed. y v

Each of thegears 22l and 29 while free ment therealong, thoughv theyare preferably adjust-able thereon. TheV gear 22 is pref?. v erably Yprovided with a :hub 33fbetwcen'- ,PATEjNTQOFFIfC. i

-to revolve on the'drum .shaft 23 is prefer- Y 'ably prevented from longitudinal `rmove'- which and the' shaft 23 is preferably. intersleeve 34 is preferably engaged bya cross key 35, located in an elongated slot extendyingl transversely through the drum shaftV 23 in` a well-knownVA manner. 'lhe'keyv 35l is engaged by a pin 36 locatedfinan 'opening' arranged longitudinally yof the 'axis vof the shaftV and the outer end of which is engaged by a screw member 37 ,the rotation of which .posed a friction bearing sleeve 349' VThe in a' manner well known in the' art moves the pin 36'longitudinally` ofthe shaft and yforces thel key 35 against the sleeve 34,

which sleeve Vin turn, engages the drum 27 y t'ovforce the same into engagement with the V friction member 30 'on the 'gear lnasmuch as the'meansassociated with the gear 29 for forcing thefdru`m27 to the "right,

as viewed in Figa are,`or maybe,v the same vvas those .described in connection withfthe gear 22., the description:v of'onewill 4suffice forboth.y y' v The [gear 22 is prevented from'inoving` longitudinally ofthe shaft 23 by means of an'v *annular Vthrust resisting member 38,

f which is screw-threadedon and adjustably as by bolts 42. The inner surface Vof'vthe 'member 41 is screw-threaded at itsouter portion as at 43 and yreceives a screwthreadedv ring 44 between which ,and one 'face-of 4the' @flange 40 .of the thrust resisting member 38 Va bearing is for me d,1While the opposite sidethereofengages lthe'hub of the Vgear 22, suitable Washers preferablybeing V'interposed between ,the iiange 40Y ofv the i thrust. resisting member and the rings 44 .and :the hub of .the gear 22, respectively. As the inea-ns forV adjustably securiirglthe gear29 longitudinally of the shaft 23 are, or may lbe,fthe saine as those described in i r,connection with the gear 22, they Will not .be .specifically described.

f The IgearfLSWhich' is mounted on the shaft 19 engagesa pinion 45 fixed on a sleeve 4G, which is Vloosely'mounted .onitflie main drive. shaftlO.r Means are provided yfor driving Vtheinain v,drum .27, from `the sleeve 46 in the reversefdirection and at .a higher 'rate ofspeed vthan Vthat fatfivhichit, is driven fo`r` Ward-1y vby the gears 4.21.,and 28. Vln the arrangement illustrated, theV gear ratio between lthe gear 18 fand p inion45 isvhigher than V.thatbetvszeen' the 'pinion 20 rand "the gear 21,lso thatfthe sleeve 46 is rotated at higher 'speed 'thaIlViS the Shaft 'on which it is mounted, .and in the same direction. In theQH-rl illustrated, .the Slee-Ye t6-fis PTO- vided .with aVshapedfriction member 47.

' responding \/.s h a ped`'frictionl member 48 Qlhedrurn 27 is alsoprovided with a con spacedfrom the friction member 47 on the sleeve. 'The friction membery 48 is preferably brought into .operative relation" to` the friction' 4,menriber 47 vby an'idler vfriction member 493.(see Fig. 6), .pivotedat 50 on' V I thefend of .an armor arms 51, Which is, .gin turn, .pivoted fto the .end yof an .arm Y52,

fixed on la shaft 58. The shaft 53 may be f rotated by a manually-operated"-'lever .54 to bring the idler y49 into engagement both Y "with the friction members-4 7 and 48. The

idler 49 is preferably -re moved' from operamemberv48 andstill permitting it to rest by f ygravity against the friction'member 47, 'so

tive rielationto'tlie friction members 47 and 4 8 byflowefring it away from the V friction that the idler iscontinously inVv engagement -ivith'the friction member 47.

'Y riction drums and G'are, also preferably mountedon.theoverhung'ends `Off the y main driving shaft v10 5 that is lto isayjthese friction drums are mounted on thefends of the shaft 10 beyond the bearings 5111-11,' and in the form illustrated, are vused for swinging a loading boom laterally. Each fully illustrated in Fig. 5, vis providedV with a coneV friction 57 engaging Vacone' friction 58 on' a driving head 59, fixed on the shaft' 10.l l The v.operative.oonneetions.4 forV the drum 55 on the opposite end ofthe shaft 10 ymay Y "bethe same as thosedescribed in connection with the drum 56; y

"Referring noW' to` Fig. 1, A indicates generally th-e VloadingV engine above described, the main drum v27 which V:isl used Vofthe drums -55 and-'56, one of which is for raising and lowering the flog. hoist-y and passes overa sheave Ak.at the.end of the boom 64, the fend ofthe. @able 61, injthe "form shown', being`-yprovided with tongs 65, which may engagea log-66. The-boom V6 4y may be VVsupported by a rod or cab'le'f67,ifat

tached at its outer end to the end ofthe boom 64, and `aft .its uinne-rend toa bracket G8 on the frame Worlr69of theenginej. A

shielding :boom 70 maybe pivotedat 7111and Y operated by suitableblocksjand tackle 71a,

bu-t'as this slridding boom Vconstitutes Vn o Vpart .ofgmy present invention", it will not fj further be described; Y' The cables 87a Vfor Vj swinging the vhoistiugbooni are' `Wound-l l on the'drums 55 and preferably' extendj-out- Wardly substantially parallel to thelloading boom to the end thereof, each cable` passing over fa L-sheave 632% (only one .of .which is shown inthe drawings) and each of which .is vpreferably suspended from'the end of a end of the cablefofa may besecured to a stump 73 or other anchor' loca-ted atioue side' of the device.Y y:By the described ar rangement, the maiinffCl1-ive gears for the main ,drumand `whichY transmit the heaviest power are' located between the bearings for the main drive shaftfand preferably close Vtheretov as illustrated, so that 'they do not bend the shaftto s ubStantial'eXtent, 'the sleeve being located Vll'ietween"theV gears. .On

the other hand, but .flittl'er Ypower is required foro'perating the boom swinging drums,

and they may be ymounted on the overhanging ends of the drive shaft Without danger of bending it and the varrangement provides fa simple, compact and effeetivecon'struction for operating the main drumat different speeds in theforward direction, vl and at fa lngherspeed m the reverse drrectioinand for swinging thel load-ing boom.

from the foregoingfdescriptio'nl and is as follows. lV-hen it is desired to liftthe load 'at .high power and'low'speed, the "drum27 is forced intoY engagen'i-ent. with V the gear 29, and when itis desired to operate thedrum `my invention .Will readily be understood a'tfloW power and high speed, kit is forced intoengagement with the gearf22. Then f it is desired'to lower the-tongs foraconnec- The operation of the illustrated form :of-V

Y lower them at a high speed. This is accomioA . means for rotating said sleeve on its shaft atv plished by permitting the drum 27 to occupy an intermediate position betweenthe gears 22and 29 and not operatively engaging either of them. The idler i9 is then thrown into operative engagement withboth of the friction members 47 and 4S by the means abovedescribed, and the drum'27 is thereby rot-ated in the reverse direction at a higher speed than either of its forward speeds.

lVhile not limited thereto, my invention is particularly adapted foruse with an elecA l l y connecting said shafts Ato and disconnecting tric motor which is not capable of operation at variable speeds in the vsame way as a steam engine.

I claim: y Y l. In a winding engine, a main drum,a

drive shaft, means fordriving said drum from said drive shaftv in aforward direction, a sleeve mounted on said drive shaft,

a higher rate of speed than the shaft itself, and means operable from saidqsleeve for driving said dium in the reverse direction.

2. Iii a winding engine, a main drum, aA

drive shaft, means for driving said drum from said drive shaft in a forward direction, a sleeve mounted onsaid drive shaft, means for rot-ating said sleeve on its shaft, and means operable from said sleeve for driving said drum 'in the reverseV direction at a higher rate of speed than in the forward direction. ,A y

B. In a winding engine, a main drum, a

drive shaft, means for driving said drum from said drive shaft in a forward direction, a sleeve mounted on said drive shaft, means for .rotatiiigfsaid'sleeve on its shaft at a` higher rate of speed than the shaft itself,

said sleeve and said drumbeing provided with spaced friction members,v a friction idler, and means for moving said idler into and out of operative engageinentlwith said friction members.

4. In a winding'engine, a main drum, a vdrive shaft, means includingy friction clutches for driving said drum forwardly at different speeds, a sleeve mounted onsaid shaft, means for rotating said sleeve on the shaft at a higher rate of speed than the'shaft it-` self, and means for driving said drum in the reverse direction from said sleeve.

5. In a winding` engine, a winding drum, a drive shaft and the bearings therefor, separate means mounted' on said shaft between the bearing for driving said drum forwardly at different speeds, a sleeve rotatably mounted ron said shaft between the said means, means for rotating said sleeve, and

Vsaid sleeve in the reverse direction, and boom swinging drums mounted on the ends of-said shaft beyond said bearings, and means for them from said shaft.

a motor, a counter shaft, a driving shaft, al n drum, means on the driving shaft for driving the drum at two different forward speeds and means driven from the counter shaft for driving the drum in reverse direction at a speed higher than either forward speed.

8. In a winding engine, the combination of a motor, a ceunter shaft,a driving'shaft, a drum," means onthe'diiving shaft for driv ing -the @drum "atiftwov` different lforward speeds, a .friction element on they drum and a :friction elementA driven from the counterfv shaft and normally disconnected from vthe drum and means for connecting said friction elements `in driving relation to rotate the-v drinn in reverse direction at a high raterof Y speed.

9. In a winding engine, the combination .of `a motor, a drive shaft, means -oii the shaftl for driving the drum at 'two different forward speeds, va friction element on the drum,

tions together todrive the drum in reverse direction at ahigh'rateofspeed.

a friction element driven by the motor and i 10. In a winding engine, the combinationv of a motor, a shaft driven by saidmotor, a drum, means on said shaft for driving theA drum at different speeds in the same direction and mea-ns acting independentlyl of the last-mentioned means for driving the drum in reverse direction ata speed higher than that vproduced by either of said means.V

1l. In a winding engine, a maindrum, a drive shaft, means including friction clutches .for driving said drum forwardly at different speeds, driving means loosely mounted lon ysaid shaft, means .for rotating said driving means on the shaft,v at a higher rate of speed than the shaft itself,'and means for driving said drum lin .the reverse direction from said driving means.

TrioMAs SPENCER-Minnen. 'i

. I 7. In a winding engine, the combination ofv l 

